Question 1

The element with the electronic configuration 1s22s22p63s1 is ________.

Accepted Answer

Question 2

One resonance structure of a cation is shown. Provide the other reasonable resonance structures.

Accepted Answer

The answer of One resonance structure of a cation is...

Question 3

What is the molecular formula for the molecule shown?

Accepted Answer

The answer of What is the molecular formula for the...

Question 4

Draw the structure of the conjugate acid of acetone

Accepted Answer

The answer of Draw the structure of the conjugate acid...

Question 5

Which of the following condensed formulas represents the same compound as the line-angle structure shown?

Accepted Answer

A)  CH3CH2CH2OCH2CH2CH2N(CH2CH2CH3)2 
B)  CH3CH2CH2OCH2N(CH2CH3)2 
C)  CH3CH2OCH2N(CH2CH3)2 
D)  CH3CH2OCH2N(CH2CH2CH3)2 
E)  CH3ON(CH3)2 
A)  CH3CH2CH2OCH2CH2CH2N(CH2CH2CH3)2 
B)  CH3CH2CH2OCH2N(CH2CH3)2 
C)  CH3CH2OCH2N(CH2CH3)2 
D)  CH3CH2OCH2N(CH2CH2CH3)2 
E)  CH3ON(CH3)2

Question 6

Provide the products of the following acid-base reaction.
(CH3)3NH+ + HO-→

Accepted Answer

Question 7

Calculate the molecular formula for the organic compound whose quantitative elemental analysis showed 48.6% caron and 8.1% hydrogen by weight.

Accepted Answer

A)  CH2O 
B)  C2H4O2 
C)  C2H6 
D)  C3H6O 
E)  C3H6O2 
A)  CH2O 
B)  C2H4O2 
C)  C2H6 
D)  C3H6O 
E)  C3H6O2

Question 8

Which of the following are acceptable Lewis structures, including formal charges, for nitric acid, HNO3?

Accepted Answer

A)  A only 
B)  B only 
C)  C only 
D)  both B and C 
E)  A, B, and C 
A)  A only 
B)  B only 
C)  C only 
D)  both B and C 
E)  A, B, and C

Question 9

Draw the Lewis structure for 2-propanol, CH3CH(OH)CH3, including all non-bonding lone pairs.

Accepted Answer

Question 10

Provide the line-angle formula (skeletal structure) for (CH3CH2)2C=O.

Accepted Answer

Question 11

The pH of a 150 mL aqueous solution of 2.13 x 10-3 M HCl is ________.

Accepted Answer

A)  -3.000 
B)  3.000 
C)  2.672 
D)  2.130 
E)  none of the above 
A)  -3.000 
B)  3.000 
C)  2.672 
D)  2.130 
E)  none of the above

Question 12

When filling two or more orbitals of the same energy with electrons, the electrons will go into different orbitals rather than pair up in the same orbital.

Accepted Answer

A) True 
 B)False

Question 13

The conjugate acid of ammonia, NH3, is ________.

Accepted Answer

A)  NH2- 
B)  NH2OH 
C)  NH4+ 
D)  none of the above 
A)  NH2- 
B)  NH2OH 
C)  NH4+ 
D)  none of the above

Question 14

Draw the Lewis structure for boric acid, B(OH)3, including all non-bonding lone pairs.

Accepted Answer

Question 15

Stabilization of a charged species usually results when this species can be more accurately depicted as a hybrid of several resonance forms. Why is this the case?

Accepted Answer

Stabilization result

Question 16

The compound phenol is shown below. Provide the structure of the conjugate base of phenol.

Accepted Answer

The answer of The compound phenol is shown below. Provide...

Question 17

Add the appropriate formal charge to each atom in the molecule below. It is not necessary to indicate formal charges when zero. (All non-bonding electrons are included.)

Accepted Answer

The answer of Add the appropriate formal charge to each...

Question 18

Indicate the line-angle structure that corresponds to the condensed structure, HOCH2C(O)CH(CH3)2.

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 19

Covalent bonds may be polar or nonpolar. What property of the atoms forming a given bond determines this?

Accepted Answer

The answer of Covalent bonds may be polar or nonpolar....

Question 20

Which of the following structures (a-d) is another resonance structure of the following organic molecule?

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Exam 1: Structure and Bonding

The element with the electronic configuration 1s22s22p63s1 is ________.

One resonance structure of a cation is shown. Provide the other reasonable resonance structures.

What is the molecular formula for the molecule shown?

Draw the structure of the conjugate acid of acetone

Which of the following condensed formulas represents the same compound as the line-angle structure shown?

Provide the products of the following acid-base reaction. (CH3)3NH+ + HO-→

Calculate the molecular formula for the organic compound whose quantitative elemental analysis showed 48.6% caron and 8.1% hydrogen by weight.

Which of the following are acceptable Lewis structures, including formal charges, for nitric acid, HNO3?

Draw the Lewis structure for 2-propanol, CH3CH(OH)CH3, including all non-bonding lone pairs.

Provide the line-angle formula (skeletal structure) for (CH3CH2)2C=O.

The pH of a 150 mL aqueous solution of 2.13 x 10-3 M HCl is ________.

When filling two or more orbitals of the same energy with electrons, the electrons will go into different orbitals rather than pair up in the same orbital.

The conjugate acid of ammonia, NH3, is ________.

Draw the Lewis structure for boric acid, B(OH)3, including all non-bonding lone pairs.

Stabilization of a charged species usually results when this species can be more accurately depicted as a hybrid of several resonance forms. Why is this the case?

The compound phenol is shown below. Provide the structure of the conjugate base of phenol.

Add the appropriate formal charge to each atom in the molecule below. It is not necessary to indicate formal charges when zero. (All non-bonding electrons are included.)

Indicate the line-angle structure that corresponds to the condensed structure, HOCH2C(O)CH(CH3)2.

Covalent bonds may be polar or nonpolar. What property of the atoms forming a given bond determines this?

Which of the following structures (a-d) is another resonance structure of the following organic molecule?

Acids and Bases; Functional Groups

Structure and Stereochemistry of Alkanes

The Study of Chemical Reactions

Stereochemistry

Alkyl Halides; Nucleophilic Substitution

Structure and Synthesis of Alkenes; Elimination

Reactions of Alkenes

Structure and Synthesis of Alcohols

Reactions of Alcohols

Infrared Spectroscopy and Mass Spectrometry

Nuclear Magnetic Resonance Spectroscopy

Ethers, Epoxides, and Thioethers

Conjugated Systems, Orbital Symmetry, and Ultraviolet Spectroscopy

Aromatic Compounds

Reactions of Aromatic Compounds

Ketones and Aldehydes

Amines

Carboxylic Acids

Carboxylic Acid Derivatives

Condensations and Alpha Substitutions of Carboxyl Compounds

Carbohydrates and Nucleic Acids

Amino Acids, Peptides, and Proteins

Lipids

Synthetic Polymers

Filters

The element with the electronic configuration 1s²2s²2p⁶3s¹ is ________.

Provide the products of the following acid-base reaction. (CH₃)₃NH⁺ + HO^-→

Which of the following are acceptable Lewis structures, including formal charges, for nitric acid, HNO₃?

Draw the Lewis structure for 2-propanol, CH₃CH(OH)CH₃, including all non-bonding lone pairs.

Provide the line-angle formula (skeletal structure) for (CH₃CH₂)₂C=O.

The pH of a 150 mL aqueous solution of 2.13 x 10^-3 M HCl is ________.

The conjugate acid of ammonia, NH₃, is ________.

Draw the Lewis structure for boric acid, B(OH)₃, including all non-bonding lone pairs.

Indicate the line-angle structure that corresponds to the condensed structure, HOCH₂C(O)CH(CH₃)₂.